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[thirdparty/gcc.git] / libstdc++-v3 / testsuite / 23_containers / priority_queue / 67085.cc

// Copyright (C) 2017-2024 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3.  If not see
// <http://www.gnu.org/licenses/>.

// { dg-do run { target c++11 } }
// { dg-require-normal-mode "" }

#include <queue>
#include <testsuite_hooks.h>

unsigned count;

struct CopyCounter : std::less<int>
{
  CopyCounter() = default;
  CopyCounter(const CopyCounter&) { ++count; }
  CopyCounter(CopyCounter&&) = default;
};

void
test01()
{
  int i;
  std::priority_queue<int, std::vector<int>, CopyCounter> q{&i, &i};
  VERIFY(count == 2);
  q.push(1);
  VERIFY(count == 3);
}

int
main()
{
  test01();
}